TW200736298A - Process for increasing the molecular weight of a polyamide - Google Patents
Process for increasing the molecular weight of a polyamideInfo
- Publication number
- TW200736298A TW200736298A TW096104450A TW96104450A TW200736298A TW 200736298 A TW200736298 A TW 200736298A TW 096104450 A TW096104450 A TW 096104450A TW 96104450 A TW96104450 A TW 96104450A TW 200736298 A TW200736298 A TW 200736298A
- Authority
- TW
- Taiwan
- Prior art keywords
- polyamide
- increasing
- molecular weight
- countercurrent
- contacted
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/08—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from amino-carboxylic acids
- C08G69/14—Lactams
- C08G69/16—Preparatory processes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/04—Preparatory processes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/46—Post-polymerisation treatment
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyamides (AREA)
- Artificial Filaments (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
Process for increasing the molecular weight of a polyamide comprising a first step, wherein the polyamide is contacted in countercurrent with a first stream comprising 15 to 100 wr% H2O and 85 to 0 wt% N2 at a temperature between 90 and 180 DEG C and for a time between 5 and 10 hours and a second step, wherein the polyamide obtained in the first step is contacted in countercurrent with a second stream comprising 90 to 100 wt% N2 and 10 to 0wt% H2O at a temperature between 130 and 200 DEG C and for a time between 10 and 30 hours.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06075258 | 2006-02-08 |
Publications (2)
Publication Number | Publication Date |
---|---|
TW200736298A true TW200736298A (en) | 2007-10-01 |
TWI409288B TWI409288B (en) | 2013-09-21 |
Family
ID=36648817
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW096104450A TWI409288B (en) | 2006-02-08 | 2007-02-07 | Process for increasing the molecular weight of a polyamide |
Country Status (11)
Country | Link |
---|---|
US (1) | US20090306331A1 (en) |
EP (1) | EP1981931B1 (en) |
CN (1) | CN101379116B (en) |
AT (1) | ATE449807T1 (en) |
BR (1) | BRPI0707534A2 (en) |
DE (1) | DE602007003444D1 (en) |
EA (1) | EA013823B1 (en) |
ES (1) | ES2335940T3 (en) |
PL (1) | PL1981931T3 (en) |
TW (1) | TWI409288B (en) |
WO (1) | WO2007090602A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2376845T3 (en) * | 2008-06-20 | 2012-03-20 | Basf Se | Continuous procedure for multi-stage drying and subsequent condensation of polyamide granules |
US20120065339A1 (en) * | 2010-09-10 | 2012-03-15 | Basf Se | Process for producing polyamide that is stable during processing |
EP2671902B1 (en) * | 2012-06-05 | 2018-01-03 | Polymetrix AG | Polyamide conditioning |
US20140350213A1 (en) * | 2012-07-06 | 2014-11-27 | Basf Se | Purification of polyamide particles |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3015651A (en) * | 1956-09-28 | 1962-01-02 | Du Pont | Increasing viscosity of polycaprolactam by removing extractables with solvents and further solid phase polymerizing the polymer |
US3374207A (en) * | 1964-11-12 | 1968-03-19 | Inventa Ag | Continuous process for the extraction of monomers and oligomers from highly polymerized caprolactam granules |
US3386967A (en) * | 1965-01-19 | 1968-06-04 | Allied Chem | Polycaproamide having excess number of carboxyl end groups over amino end groups |
DE3710803A1 (en) * | 1987-03-31 | 1988-10-20 | Basf Ag | METHOD FOR REMOVING CAPROLACTAM AND ITS OLIGOMERS FROM SUCH CONTAINING POLYAMIDE GRANULES |
US4891420A (en) * | 1988-06-30 | 1990-01-02 | Basf Aktiengesellschaft | Continuous process for the hydrolytic production of polycaprolactam by tempering unextracted granular polymer material with moist inert gas |
DE3923061C1 (en) * | 1989-07-13 | 1990-07-26 | Basf Ag, 6700 Ludwigshafen, De | |
DE4421704A1 (en) * | 1994-06-21 | 1996-01-04 | Bayer Ag | Process for the production of high molecular weight polyamide 6 |
DE19752183A1 (en) * | 1997-11-25 | 1999-05-27 | Basf Ag | Continuous extraction of polyamide particle |
DE10047657B4 (en) * | 2000-09-26 | 2005-02-10 | Basf Ag | Process for the preparation of polycaprolactam, a polycaprolactam and its use |
EP1331236A1 (en) * | 2002-01-25 | 2003-07-30 | Dsm N.V. | Solid-state post-condensation process for increasing the molecular weight of a polyamide |
-
2007
- 2007-02-06 ES ES07703300T patent/ES2335940T3/en active Active
- 2007-02-06 PL PL07703300T patent/PL1981931T3/en unknown
- 2007-02-06 EP EP07703300A patent/EP1981931B1/en not_active Revoked
- 2007-02-06 WO PCT/EP2007/000992 patent/WO2007090602A1/en active Application Filing
- 2007-02-06 CN CN2007800048969A patent/CN101379116B/en not_active Expired - Fee Related
- 2007-02-06 US US12/278,327 patent/US20090306331A1/en not_active Abandoned
- 2007-02-06 AT AT07703300T patent/ATE449807T1/en not_active IP Right Cessation
- 2007-02-06 DE DE602007003444T patent/DE602007003444D1/en active Active
- 2007-02-06 EA EA200801808A patent/EA013823B1/en not_active IP Right Cessation
- 2007-02-06 BR BRPI0707534-0A patent/BRPI0707534A2/en not_active IP Right Cessation
- 2007-02-07 TW TW096104450A patent/TWI409288B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE602007003444D1 (en) | 2010-01-07 |
CN101379116A (en) | 2009-03-04 |
EA200801808A1 (en) | 2008-12-30 |
TWI409288B (en) | 2013-09-21 |
ATE449807T1 (en) | 2009-12-15 |
EA013823B1 (en) | 2010-08-30 |
EP1981931A1 (en) | 2008-10-22 |
PL1981931T3 (en) | 2010-04-30 |
BRPI0707534A2 (en) | 2011-05-03 |
EP1981931B1 (en) | 2009-11-25 |
CN101379116B (en) | 2011-05-25 |
ES2335940T3 (en) | 2010-04-06 |
WO2007090602A1 (en) | 2007-08-16 |
US20090306331A1 (en) | 2009-12-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | Annulment or lapse of patent due to non-payment of fees |